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POWERSTEP01 Datasheet(PDF) 8 Page - STMicroelectronics

Part # POWERSTEP01
Description  System-in-package integrating microstepping controller and 10 A power MOSFETs
PDF  92 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

POWERSTEP01 Datasheet(HTML) 8 Page - STMicroelectronics

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List of figures
powerSTEP01
8/92
DocID025022 Rev 5
List of figures
Figure 1.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2.
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 3.
Typical application schematic - voltage mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 4.
Typical application schematic - current mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 5.
Charge pump circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 6.
Normal mode and microstepping (128 microsteps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 7.
Automatic Full-step switching in Normal mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 8.
Automatic Full-step switching in Boost mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 9.
Constant speed command examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 10.
Positioning command examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 11.
Motion command examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 12.
OSCIN and OSCOUT pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 13.
Overcurrent detection - principle scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 14.
External switch connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 15.
Device supply pin management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 16.
Current distortion and compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 17.
BEMF compensation curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 18.
Motor supply voltage compensation circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 19.
Predictive current control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 20.
Non-predictive current control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 21.
Adaptive decay - fast decay tuning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 22.
Adaptive decay - switch from normal to slow+ fast decay mode and vice versa . . . . . . . . 46
Figure 23.
Fast decay tuning during the falling steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 24.
Current sensing and reference voltage generation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 25.
SPI timings diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 26.
Daisy chain configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 27.
Command with 3-byte argument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 28.
Command with 3-byte response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 29.
Command response aborted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 30.
VFQFPN 11 x 14 x 1.0 - 9 die pads drawing - side view . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 31.
VFQFPN 11 x 14 x 1.0 - 9 die pads drawing - bottom view . . . . . . . . . . . . . . . . . . . . . . . . 84
Figure 32.
VFQFPN 11 x 14 x 1.0 - 9 die pads drawing - pin identifier . . . . . . . . . . . . . . . . . . . . . . . . 85
Figure 33.
Recommended footprint - suggested landpattern (overall view). . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 34.
Recommended footprint - lead land positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Figure 35.
Recommended footprint - land size and exposed pad positioning . . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 36.
Recommended footprint - detail A and B drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90



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